Devdas Bhagat saw fit to inform LI that:
 
>Or how about changing ownership of adduser to said user in a restricted shell?

How? 

>The web based script is a good idea.

Use the taint module in PERL to filter out everything except numeric and
alphanumeric characters, else someone can easily use your script to
execute arbitrary *nix commands on your box.  B'cos adduser HAS (I think)
to run as root to create necessary files, folders etc.

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